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可控制转速CSS3旋转风车特效

2018-06-24 00:53:24来源：未知阅读 ()

以前制作网页动画一般使用javascript，现在已经有越来越多动动画使用纯CSS实现，并且动画的控制也可以使用CSS3实现，因为CSS 3来了，CSS 3的动画功能确实强大。以下是一个纯CSS3制作的风车旋转动画，而且也用CSS 3控制速度。

体验效果：
http://hovertree.com/texiao/css3/40/

效果图：

可以看到，风车的叶片是三角形，使用css画各种图形请参考：
http://hovertree.com/h/bjaf/jtkqnsc1.htm
http://hovertree.com/h/bjaf/ltgc20vn.htm

css制作动画是用到了animation属性，请参考：
http://hovertree.com/h/bjaf/i309b77d.htm
http://hovertree.com/h/bjaf/fwck53gt.htm
http://hovertree.com/h/bjaf/xpxgjfap.htm
http://hovertree.com/h/bjaf/kqud99m6.htm

扇叶的旋转使用到了transform属性，参考：
http://hovertree.com/h/bjaf/c3bshswk.htm
http://hovertree.com/h/bjaf/lxsexx3m.htm

本示例用到了CSS 3的选择器nth-of-type，参考：
http://hovertree.com/h/bjaf/c2c0k0tf.htm

下面给出本示例的代码：

<!DOCTYPE html>
<html lang="zh-CN">
<head>
<meta charset="UTF-8"><meta name="viewport" content="width=device-width, initial-scale=1" />
<title>可控制转速CSS3旋转风车特效 - 何问起</title>
<link rel="stylesheet" href="http://hovertree.com/texiao/css3/40/style/hovertreespin.css">
</head>
<body>
<div class="wrapper">
    <div class="pin-layout">
        <a href="#" class="control">暂停</a>
        <a href="#" class="control">旋转</a>
        <a href="#" class="control">中速</a>
        <a href="#" class="control">高速</a>
        <div class="pillar">
            <div class="dot"></div>
            <span class="item1"></span>
            <span class="item2"></span>
            <span class="item3"></span>
            <span class="item4"></span>
        </div>
    </div>
    <p><b>何问起温馨小提示：</b>暂停后点击页面任何区域都可自动旋转哦!</p>
</div><!-- end wrapper -->
<div style="text-align:center;margin:100px 0; font:normal 14px/24px 'MicroSoft YaHei';">
<p>适用于支持CSS3的浏览器。</p>
<p>来源：<a href="http://hovertree.com/" target="_blank">何问起</a> <a href="http://hovertree.com/h/bjag/efqb2w4s.htm" target="_blank">说明</a></p>
</div>
</body>
</html>

CSS文件代码：

*{margin:0; padding:0;}
body{background:#eee;width:100%; height:100%;}
.wrapper{
    position: relative;
    width: 800px;
    height:450px;
    margin:60px auto 0;
}
.wrapper .pin-layout{
    position: absolute;
    bottom: 0;
    left: calc(50% - 20px);
    width:40px;
    height:280px;
}
.wrapper .pin-layout::after{
    position:absolute;
    bottom:0;
    left: calc(50% - 20px);
    content:"";
    height:0;
    width:10px;
    border-width: 0px 15px 280px 15px;
    border-style:solid;
    border-color:transparent transparent #6B3500 transparent;
}
.wrapper .pin-layout .pillar{
    position: absolute;
    top: -18px;
    left: calc(50% - 18px);
    width:36px;
    height:36px;
    z-index: 9;
    transform: rotateZ(45deg);
    transition:all .9s linear;
    animation: hovertreespin 3s linear 0s infinite;
}
.pin-layout .control:hover::after{
    position: absolute;
    left: 0;
    content: "";
    width: 100%;
    height:100%;
    background: rgba(0,0,0,.3);
}
.pin-layout .control{
    position: absolute;
    bottom:0;
    width: 80px;
    height:30px;
    line-height:30px;
    border: 1px solid #ADADAD;
    border-radius: 4px;
    text-align:center;
    text-decoration:none;
    letter-spacing:2px;
    color: white;
    background: red;
}
.pin-layout .control:nth-of-type(1){
    left: -100px;
}
.pin-layout .control:nth-of-type(3):focus ~ .pillar{
    animation-duration:.8s;
}
.pin-layout .control:nth-of-type(4):focus ~ .pillar{
    animation-duration:.2s;
}
.pin-layout .control:nth-of-type(2){
    right: -100px;
    background: green;
}
.pin-layout .control:nth-of-type(3){
    bottom: -40px;
    left: -100px;
    background: #037862;
}
.pin-layout .control:nth-of-type(4){
    bottom: -40px;
    right: -100px;
    background: #036B3E;
}
.pin-layout .control:nth-of-type(1):focus ~ .pillar{
    animation-play-state:paused;
}
.pin-layout .control:nth-of-type(2):focus ~ .pillar{
    animation-play-state:running;
}
 .pin-layout .pillar span[class^="item"]{
    position: absolute;
     top: calc(-200px + 18px);
    left: 18px;
    border-width:0px 80px 200px 0px;
    border-style:solid;
 }
 .pin-layout .pillar span[class^="item"]:nth-of-type(1){
    z-index:1;
    border-color:transparent transparent dodgerblue transparent;
    /*border-color:green red gray blue;*/
}
 .pin-layout .pillar span[class^="item"]:nth-of-type(2){
    z-index:2;
    border-color:transparent transparent orangered transparent;
    transform-origin:left bottom;
    transform: rotateZ(90deg);
}
 .pin-layout .pillar span[class^="item"]:nth-of-type(3){
    z-index:3;
    border-color:transparent transparent greenyellow transparent;
    transform-origin:left bottom;
    transform: rotateZ(180deg);
}
 .pin-layout .pillar span[class^="item"]:nth-of-type(4){
    z-index:4;
    border-color:transparent transparent mediumpurple transparent;
    transform-origin:left bottom;
    transform: rotateZ(270deg);
}
.wrapper .pin-layout .pillar .dot{
    position: absolute;
    top: 0;
    left: 0;
    border-width: 19px;
    border-style: solid;
    border-color: #3C0505 transparent #3C0505 transparent;
    border-radius:50%;
    background:#F505EE;
    z-index:1999;
    box-shadow:0 0 2px #1A0505;
}
@keyframes hovertreespin {
    0%{
        transform: rotate(0deg)
    }
    100%{
        transform:rotate(360deg);
    }
}